Charlie  Jeff and  others have mentioned that Duet has miffed off some of the folks from Microsoft business systems (see here). Any significant alliance is going to upset part of a big business.

Oracle Application presales guys get really upset because more SAP applications run on Oracle databases than do Oracle applications. 

At SAP we have a lot of discussions about how Duet and the Portal work together and overlap. The guys who built the calendar feature in the SAP portal probably don't like Duet either.  I dont think we have all the answers yet.

For me, the interesting thing about Duet is not the product.

Okay, Yes, it does all that bringing SAP apps to the familiar desktop of the user etc, but Outlook has been arounds for aeons. SAP has been doing employee self service since the mid 1990s, we have sold over 13 million ESS users.

What is interesting to me,

1. It is a joint development. SAP developers and Microsoft developers working on the same product, together. In joint teams. SAP's dev lead on this is one of our best.

2. It will be sold and marketed by both companies.

The second point here is going to be key. How will we and Microsoft go to market, how will the Microsoft salesforce line up behind Duet? In the "early" accounts where I have been involved, I've seen strong colaboration between MSFT and SAP teams.

 If I was a top sales guy at MSFT, what would I rather be selling